H01J 35/14
Arrangements for concentrating, focusing, or directing the cathode ray
H01J35/14 (Arrangements for concentrating, focusing, or directing the cathode ray) appears on 647 US grants and 615 published applications in this corpus.
Search patents in H01J- Granted patents
- 647
- Published applications
- 615
- Assignees
- 241
- Inventors
- 1,077
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 6 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 7 | 0 |
| 1987 | 8 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 5 | 0 |
| 1991 | 10 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 7 | 0 |
| 1997 | 5 | 0 |
| 1998 | 12 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 3 |
| 2002 | 8 | 4 |
| 2003 | 8 | 5 |
| 2004 | 6 | 9 |
| 2005 | 10 | 15 |
| 2006 | 10 | 10 |
| 2007 | 12 | 18 |
| 2008 | 16 | 8 |
| 2009 | 9 | 17 |
| 2010 | 16 | 32 |
| 2011 | 8 | 21 |
| 2012 | 20 | 32 |
| 2013 | 20 | 22 |
| 2014 | 17 | 30 |
| 2015 | 25 | 45 |
| 2016 | 25 | 26 |
| 2017 | 38 | 31 |
| 2018 | 23 | 36 |
| 2019 | 29 | 31 |
| 2020 | 41 | 41 |
| 2021 | 40 | 41 |
| 2022 | 27 | 32 |
| 2023 | 30 | 35 |
| 2024 | 40 | 35 |
| 2025 | 29 | 27 |
| 2026 | 19 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method and arrangement for an X-ray source29 Sep 2026US 12,750,938 B2Excillum AB
- X-ray tube22 Sep 2026US 12,744,177 B2Hamamatsu Photonics K.K.
- X-ray generator8 Sep 2026US 12,731,752 B2Hamamatsu Photonics K.K.
- System for production of radioisotopes by bremsstrahlung comprising a curved converter25 Aug 2026US 12,718,965 B2Ion Beam Applications S. A.
- Field effect electron emitter with grouped part emission surfaces11 Aug 2026US 12,706,269 B2Siemens Healthineers AG
- Electron beam emission structure and field emission device3 Sep 2026US 2026/0260836 A1Meidensha Corporation
- System and method for adjusting fluoroscopy imaging conditions30 Jul 2026US 2026/0221372 A1Canon Kabushiki Kaisha
- X-ray source for an x-ray imaging system, x-ray imaging system and method for operating an x-ray imaging system16 Jul 2026US 2026/0202357 A1Carl Zeiss SMT GmbH
- X-ray source with multiple grids2 Jul 2026US 2026/0190208 A1Varex Imaging Corporation
- Compact x-ray electron beam scan tube, system and method23 Apr 2026US 2026/0112565 A1
Most cited
By later US patents
- X-ray generating mechanism using electron field emission cathode190US 6,553,096 B1University of North Carolina - Chapel Hill · 2003
- System for inspecting the contents of a container188US 6,542,574 B2American Science and Engineering, Inc. · 2003
- Maneuverable and locateable catheters177US 5,651,047 ACardiac Mariners, Inc. · 1997
- X-ray generator150US 6,282,263 B1Bede Scientific Instruments Limited · 2001
- Image reconstruction methods144US 5,644,612 ACardiac Mariners, Inc. · 1997